Handle the case where IAttachmentExecute::Save() deletes a downloaded file.

content/browser/download/base_file_linux.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/download/base_file.h"
 
 #include "content/browser/download/file_metadata_linux.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
-void BaseFile::AnnotateWithSourceInformation() {
+DownloadInterruptReason BaseFile::AnnotateWithSourceInformation() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   DCHECK(!detached_);
 
   AddOriginMetadataToFile(full_path_, source_url_, referrer_url_);
+  return DOWNLOAD_INTERRUPT_REASON_NONE;
 }
 
 }  // namespace content